docs(ocr): add Admin OCR overview & model-detail UI spec

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

backend/src/main/java/org/raddatz/familienarchiv/service/OcrAsyncRunner.java

@@ -9,10 +9,12 @@ import org.raddatz.familienarchiv.repository.OcrJobRepository;
 import org.springframework.scheduling.annotation.Async;
 import org.springframework.stereotype.Component;
 
+import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
 import java.util.UUID;
 import java.util.concurrent.atomic.AtomicInteger;
+import java.util.concurrent.atomic.AtomicReference;
 
 @Component
 @RequiredArgsConstructor
@@ -29,6 +31,7 @@ public class OcrAsyncRunner {
     private final OcrJobRepository ocrJobRepository;
     private final OcrJobDocumentRepository ocrJobDocumentRepository;
     private final OcrProgressService ocrProgressService;
+    private final SenderModelService senderModelService;
 
     @Async
     public void runSingleDocument(UUID jobId, UUID documentId, UUID userId) {
@@ -68,12 +71,18 @@ public class OcrAsyncRunner {
 
             String pdfUrl = fileService.generatePresignedUrl(doc.getFilePath());
 
+            String senderModelPath = null;
+            if (doc.getSender() != null && doc.getScriptType() == ScriptType.HANDWRITING_KURRENT) {
+                senderModelPath = senderModelService.maybeGetModelPath(doc.getSender().getId()).orElse(null);
+            }
+
             AtomicInteger blockCounter = new AtomicInteger(0);
             AtomicInteger currentPage = new AtomicInteger(0);
             AtomicInteger skippedPages = new AtomicInteger(0);
             AtomicInteger totalPages = new AtomicInteger(0);
 
-            ocrClient.streamBlocks(pdfUrl, doc.getScriptType(), regions, event -> {
+            final String finalSenderModelPath = senderModelPath;
+            ocrClient.streamBlocks(pdfUrl, doc.getScriptType(), regions, finalSenderModelPath, event -> {
                 switch (event) {
                     case OcrStreamEvent.Start start -> {
                         totalPages.set(start.totalPages());
@@ -207,7 +216,25 @@ public class OcrAsyncRunner {
         clearExistingBlocks(documentId);
 
         String pdfUrl = fileService.generatePresignedUrl(doc.getFilePath());
-        List<OcrBlockResult> blocks = ocrClient.extractBlocks(pdfUrl, doc.getScriptType());
+
+        String senderModelPath = null;
+        if (doc.getSender() != null && doc.getScriptType() == ScriptType.HANDWRITING_KURRENT) {
+            senderModelPath = senderModelService.maybeGetModelPath(doc.getSender().getId()).orElse(null);
+        }
+
+        final AtomicReference<List<OcrBlockResult>> blocksRef = new AtomicReference<>();
+        final String finalSenderModelPath = senderModelPath;
+        ocrClient.streamBlocks(pdfUrl, doc.getScriptType(), null, finalSenderModelPath, event -> {
+            switch (event) {
+                case OcrStreamEvent.Page page -> {
+                    blocksRef.compareAndSet(null, new ArrayList<>());
+                    blocksRef.get().addAll(page.blocks());
+                }
+                default -> {}
+            }
+        });
+
+        List<OcrBlockResult> blocks = blocksRef.get() != null ? blocksRef.get() : List.of();
         createTranscriptionBlocks(documentId, blocks, userId, doc.getFileHash());
     }